[openscapes & nmfs-openscapes, workshop] Hide 'shared' directory

[jnywong]

Context

Since there is no admin access to the shared password workshop hubs, then the concept of a 'shared' directory does not apply. Let's hide this feature for workshop hubs.

Ref: https://2i2c.freshdesk.com/a/tickets/2704

Tasklist

• Hide feature for the openscapes & nmfs-openscapes workshop hubs
• Update infrastructure docs so that future shared password workshop-style hubs do not enable this feature by default